Manufacture of artificial stone and marble



solution forgeneral purposes.

3 dients.

5 per ion as to ma e a p UNITED i STATES Cross Reference PATENT OFFICE.

' MANUFACTURE OF ARTIFICIAL stone AND MARBLE.

BPEGIFICATION forming part of Patent No. 254,530, dated March 7, 1882.

To all whom it mag concern.-

Be it known that I, DAVID Honszrrs Bun LONG, of St. Louis, .in the county of St. Louis,

and in the State of Missouri, have invented certain new and useful Improvements in the Manufacture of Artificial Stone and Marble; and I do hereby declare that the following is a full, clear, and exact description thereof.

This invention relates to certain improvements in the manufacture of artificial stone, such as marble, conglomerate, and the like; and it has for its objects to provide a compound that will readily set and harden when properly laid. or applied to a suitable surface, and which may be put into any shapes or designs, as more fully hereinafter set forth.

marrying out'my invention I first make a s olu ti on of the following ingredients in about the following proportions, to wit: tartaric acid, twenty .Ounce's, more or less; so as arsenias, five pounds, more or less;

' sodze caus ica our pounds, more or less; carBureE oi iron one gallon, more or less; sodas citro tartras four pounds, more or less; oxide of lead, seven pounills, more orhless. -Ihthissolveh 10 above ingre tents in ct er, nap t a, a co 0 or any other liquid that will cut t 0 same, and to each two quarts of the solution add two hundred gallons of water, more or less, which forms a For heavy work the proportions of the ingredients may be doubled, or even trebled, to produce a rapid crystallization, and form a compact insoluble compound when mixed with the other ingre- In the manufacture of artificial stone generally I take, say, about twenty-five parts (more or less) ofsharpilicious ud.

0111' a})out tltesameamounto tai rtz, 0 t e att r einga waste pro ammonmulates in n shard,-whihhhashitherto een considered worthless. This I mix with :Pnhovn nfififid solution, adding Keeusgibl or ran 10 comentin uch proastic or semiplastic mass, and molithe same into I suitable for pavinghr' architectural purposes, or apply it directly to the surface of the ground or to the structures for which it is intended, care so beirg taken to thoroughly mix'the ingredients, so as to form a homogeneous mass.

Application filed January 11, 1882. (No specimens.)

7 Instead f the quartztailings mentioned, coal-dnsK:;oal-screeuings a material accumu a ing 1 large quantities at the coal-mines Examiner throughout the world, and which has heretofore been considered worthless-may be used, forming an artificial product possessing all the characteristics of the natural mineral.

In the manufacture of artificial marble I take I 7 the above-mentioned com ')0llll(l and mix with it eeus 0 or w rte cement, making a K m mixture 0 out the consistency of cream or gaste. The mixture I then pour into a suitale mold or form, to form a block of any suitab es ape. riegations,in imitation of the natural marble, I take the white compound as thus prepared, in several lots, according to the colors to be produced upon the surface of the finished In order to form the veins or va- 6 stone, and mix with such, in separate vessels, 7o

mineral or other colors of suitable nature. I

en a e such colored varieties of the compound and place suitable quantities of the same upon the surface of the mass in the mold or form, and with the fingers or by means of 7 5 a suitable instrument mix the surface so as to blend the colors, so as to closely imitate the veins of the natural stone. In order to more closely imitate natural stones, after the block has had its surface thus prepared I turn it out, before drying, upon a smooth surface, face downward, which causes the colors to run and further blend together, forming a variegated surface, which may be made to resemble any variety of marble.

My improved compound may be applied to the construction of hollow walls, monuments, cemetery -work, architectural work, hollow sea-walls, caissons, abutments, piers, and all other purposes where walls of greatstrcngth are required.

Having thus described my invention, what 1 claim, and desire to secure byLettcrs Patent, is-- i 1. The compound herein described for the 5 manufacture of artificial stone or marble, in connection .with sharp silicious sand or gravel, quartz-tailings, coal-screenings, and cemcntor other similar material, substantially as specified.

' 2. The process herein described of producinga variegated surface upon the blocks of 5 then blending the same by stirring, and finally forming the surface by turning the partiallysubstantially as specified.

artificial stone or marble, the same consisting In testimony whereof Iafiix my signature, in in first pouring the composition of proper conpresence of two witnesses, this 11th day of J an- 10 sisteucy into a mold or form, then placing upnary, 1882 on the same the compound in diiferent colors, H BUDLONG Witnesses:

J. J. MCCARTHY,

hardened block out upon a suitable surface,

- CHAS. D. DAVIS. 

